About BACtrack
Easily estimate your BAC (Blood Alcohol Content) with a BACtrack smartphone breathalyzer and this free companion app. Designed by BACtrack, the leading manufacturer of personal and professional breathalyzers, this app...
Easily estimate your BAC (Blood Alcohol Content) with a BACtrack smartphone breathalyzer and this free companion app. Designed by BACtrack, the leading manufacturer of personal and professional breathalyzers, this app connects to your device wirelessly via Bluetooth®, and allows you to measure your alcohol level with the award-winning BACtrack Mobile, BACtrack C6, and BACtrack C8 smart breathalyzers.
BACtrack makes it easy to understand how alcohol affects the body, empowering you to make smarter, more informed decisions. In this version of the BACtrack app:
• Pairing is automatic once you turn on your BACtrack and open the app; results are communicated via Bluetooth® to display on your phone.
• Quickly and easily estimate your BAC and read safety information about corresponding impairment levels.
• ZeroLine® estimates when your BAC will return to 0.00%.
• Saved BAC readings allow you to get a clear picture of your drinking habits.
The most trusted brand of breathalyzers on the market, BACtrack has been featured in Fast Company, CNET, and Bloomberg. BACtrack was rated #1 Breathalyzer by Car and Driver Magazine, and has won top awards from Popular Science, Good Design Australia and the Edison Awards. Download now and test your BAC anywhere, anytime!
BACtrack was the first company to ever receive FDA clearance to sell breathalyzers to consumers for personal use. Using a personal breathalyzer is a great way to enjoy yourself responsibly. As with anything health related, you should seek advice from your doctor or other qualified health professional before changing habits.
Previous Versions
Here you can find the changelog of BACtrack since it was posted on our website on 2017-01-02 16:02:08.
The latest version is 4.2.0 and it was updated on 2026-07-01 13:01:34. See below the changes in each version.
BACtrack version 4.2.0
Updated At: 2026-06-10
Changes: We have made adjustments to enhance your experience. Update the app and keep enjoying all the new features.
BACtrack version 4.1.0
Updated At: 2026-04-15
Changes: Welcome to the all new BACtrack! This update brings a full redesign with improvements in speed, performance, and design.
BACtrack version 3.1.4
Updated At: 2024-08-28
Changes: Update min SDK version
BACtrack version 3.1.2
Updated At: 2023-09-11
Changes: - Various crash fixes
BACtrack version 3.1.1
Updated At: 2023-04-18
Changes: -Fixed multiple crashes
-Improved dark mode on other UI fixes
-Fixed BAC test temperature error
-Fixed multiple blank screens
-Fixed update password flow
BACtrack version 3.0.2
Updated At: 2023-03-22
Changes: -Fixed a crash related to permissions
BACtrack version 2.6.93
Updated At: 2021-03-15
Changes: - Support for devices shipped with newer firmware
- Fixed bug in which spaces could be before or after a username
- Fixed issue viewing readings with images
BACtrack version 2.6.92
Updated At: 2019-01-31
Changes: Warn about incompatible standalone units, various bug fixes, add build number
BACtrack version 2.6.5
Updated At: 2017-12-22
Changes: Added additional French and German localization. Added mg / L of breath unit type.
BACtrack version 2.6.2
Updated At: 2016-09-28
Changes: • Fixed stall after warmup during reading on Android 4.x.,• Various other bugfixes.
Disclaimer
Official Google Play Link
We do not host BACtrack on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
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